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  • 1
    Online Resource
    Online Resource
    The Magnitude of Global Marine Species Diversity
    Elsevier BV ; 2012
    In:  Current Biology Vol. 22, No. 23 ( 2012-12), p. 2189-2202
    Details
    In: Current Biology, Elsevier BV, Vol. 22, No. 23 ( 2012-12), p. 2189-2202
    Type of Medium: Online Resource
    ISSN: 0960-9822
    URL: Article
    DOI: 10.1016/j.cub.2012.09.036
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2012
    detail.hit.zdb_id: 2019214-9
    SSG: 12
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  • 2
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    Primary cultures from the marine sponge Xestospongia muta (Petrosiidae, Haplosclerida)
    Elsevier BV ; 2003
    In:  Journal of Biotechnology Vol. 100, No. 2 ( 2003-1), p. 169-176
    Details
    In: Journal of Biotechnology, Elsevier BV, Vol. 100, No. 2 ( 2003-1), p. 169-176
    Type of Medium: Online Resource
    ISSN: 0168-1656
    URL: Article
    DOI: 10.1016/S0168-1656(02)00251-1
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2003
    detail.hit.zdb_id: 2016476-2
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  • 3
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    Minimalist barcodes for sponges: a case study classifying African freshwater Spongillida
    Canadian Science Publishing ; 2019
    In:  Genome Vol. 62, No. 1 ( 2019-01), p. 1-10
    Details
    In: Genome, Canadian Science Publishing, Vol. 62, No. 1 ( 2019-01), p. 1-10
    Abstract: African sponges, particularly freshwater sponges, are understudied relative to demosponges in most other geographical regions. Freshwater sponges (Spongillida) likely share a common ancestor; however, their evolutionary history, particularly during their radiation into endemic and allegedly cosmopolitan groups, is unclear. Freshwater sponges of at least 58 species of 17 genera and four families are described from Central and Eastern Africa, but the diversity is underestimated due to limited distinguishable morphological features. The discovery of additional cryptic species is very likely with the use of molecular techniques such as DNA barcoding. The Royal Museum of Central Africa (MRAC, Tervuren, Belgium) hosts one of the largest collections of (Central) African freshwater sponge type material. Type specimens in theory constitute ideal targets for molecular taxonomy; however, the success is frequently hampered by DNA degradation and deamination, which are a consequence of suboptimal preservation techniques. Therefore, we genotyped African demosponge holotype material of the MRAC with specific short primers suitable for degenerated tissue and compare the results with the current, morphology-based classification. Our results demonstrate the utility of minimalistic barcodes for identification of sponges, potentially enabling efficient identification of individuals in taxonomic or metabarcoding studies, and highlight inconsistencies in the current freshwater sponge classification.
    Type of Medium: Online Resource
    ISSN: 0831-2796 , 1480-3321
    URL: Article
    DOI: 10.1139/gen-2018-0098
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 2019
    detail.hit.zdb_id: 2020635-5
    SSG: 12
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  • 4
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    Sponge invaders in Dutch coastal waters
    Cambridge University Press (CUP) ; 2007
    In:  Journal of the Marine Biological Association of the United Kingdom Vol. 87, No. 6 ( 2007-12), p. 1733-1748
    Details
    In: Journal of the Marine Biological Association of the United Kingdom, Cambridge University Press (CUP), Vol. 87, No. 6 ( 2007-12), p. 1733-1748
    Abstract: Continuous monitoring by scientists and volunteers of the Biological Working Group of the Dutch SubAqua Union and the ‘Anemoon’ Foundation over the past four years, yielded a surprising six new records of sponges for Dutch coastal waters. Oscarella lobularis , Celtodoryx girardae , Suberites virgultosus , Haliclona ( Haliclona ) simulans , Halisarca aff. dujardini , and a species identified as Leucosolenia somesii were unknown from Dutch coastal waters before 2000. The latter is a giant calcareous sponge, seemingly belonging to the common Leucosolenia variabilis , but here assumed to be an invader as well, as it has spicular characters well outside the variation found in the majority of Dutch L. variabilis specimens. It is likely a member of a ‘forgotten’ species, L. somesii . Habit photographs, SEM images of the spicules, and for O. lobularis and H . aff. dujardini , photographs of histological sections are provided to substantiate these new records. With the exception of C. girardae , most of the species resemble previously described widespread north-east Atlantic species, occurring in the area to the south and west of the Netherlands, so it is assumed pending future genetic research that at least several of the invaders comprise range extensions related to rising winter temperatures. Possibly, recent shellfish imports may be an additional causal agent. We also report the occurrence of unprecedented spicular deviations observed in three sponge species commonly occurring in Dutch waters, Halichondria ( Halichondria ) panicea , Hymeniacidon perlevis and Haliclona ( Soestella ) xena , which grew in small inland water bodies. Possibly, the limited space in these inland waters with possible stress factors for sponges such as reduced water exchange, and deviating chemistry, have caused the sponges to form stunted growth in spicules varying from rhabds with rounded endings to silica spheroids. We provide an updated list of sponges found in Dutch waters and a list of suspected or proven invaders of Dutch waters.
    Type of Medium: Online Resource
    ISSN: 0025-3154 , 1469-7769
    URL: Article
    DOI: 10.1017/S002531540705816X
    RVK:
    WA 15000
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2007
    detail.hit.zdb_id: 1491269-7
    detail.hit.zdb_id: 281325-7
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  • 5
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    Sponge diversity and community composition in Irish bathyal coral reefs
    Brill ; 2007
    In:  Contributions to Zoology Vol. 76, No. 2 ( 2007), p. 121-142
    Details
    In: Contributions to Zoology, Brill, Vol. 76, No. 2 ( 2007), p. 121-142
    Abstract: Sponge diversity and community composition in bathyal cold water coral reefs (CWRs) were examined at 500-900 m depth on the southeastern slopes of Rockall Bank and the northwestern slope of Porcupine Bank, to the west of Ireland in 2004 and 2005 with boxcores. A total of 104 boxcore samples, supplemented with 10 trawl/dredge attempts, were analyzed for the presence and abundance of sponges, using microscopical examination of (sub)samples of collected coral branches, and semi-quantitative macroscopic examination. Approximate minimum size of identified and counted sponge individuals was 1 mm. Literature data were added to the Porcupine Bank results to compensate for a less intensive sampling program in that location. Species richness and abundance were determined at local (sample diversity, pooled-sample diversity, local reef diversity), between-reef (diversity of two reef areas at 15 km distance), and regional scales (diversity of three reef areas over a distance of 200 km). Abiotic and biotic parameters including depth, the presence and cover of live coral, dead coral and sand, local reef, and orientation towards the nearest reef mound summit, were included in a constrained ordination technique (RDA); a Monte Carlo forward selection procedure was used to obtain significant predictors of variation in composition. The results of this analysis were compared with unconstrained ordination (PCA) and cluster analysis. The presence of live coral, depth and the local reefs C1 and C3 proved to be significant predictors of variation in sponge composition. The PCA and cluster analysis confirmed these results. Sample species richness was consistently heterogeneous from zero species and individuals up to 57 species and 90 individuals per (boxcore) sample. Species richness of local reefs determined from pooled samples showed the three localities studied to have similar species richness, namely 105-122 species in each location. Species richness was highest in samples with relatively low live coral cover. As in the RDA, live coral presence and depth appeared to be responsible for most of the variation observed in the cluster results. Cluster analysis of Bray-Curtis dissimilarity values of the pooled samples of all three reef localities using presence/absence data of all available samples indicated that distance appeared to structure the composition of the sponge assemblages of the three reef mound areas, but much less so within and among local reefs. Bathyal reefs of the regions to the west of Ireland were found to have a combined sponge species richness of 191 species, exceeding the richness of individual reef mound areas by c. 38-45%. Sponge presence in CWRs is clearly structured and controlled by biotic and abiotic factors. In particular, live coral presence appears a significant predictor of CWR sponge composition and diversity.
    Type of Medium: Online Resource
    ISSN: 1383-4517 , 1875-9866
    URL: Article
    DOI: 10.1163/18759866-07602005
    Language: Unknown
    Publisher: Brill
    Publication Date: 2007
    detail.hit.zdb_id: 1484788-7
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  • 6
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    Diversity and spatial heterogeneity of mangrove associated sponges of Curaçao and Aruba
    Brill ; 2008
    In:  Contributions to Zoology Vol. 77, No. 4 ( 2008-12-22), p. 205-215
    Details
    In: Contributions to Zoology, Brill, Vol. 77, No. 4 ( 2008-12-22), p. 205-215
    Abstract: Sponges are major epibionts of mangrove roots in the Caribbean. Mangrove sponge communities in the Caribbean mainly consist of species that are typical to this habitat and community compositions often differ from those found on coral reefs nearby. Heterogeneity in species distributions between locations and within locations between roots is often reported. This study quantifies the diversity and abundance of mangrove associated sponges in the inner bays of Curaçao and Aruba and correlates variability of regional sponge diversity with environmental variables measured along the surveyed sites. Tannin concentrations vary between mangrove roots, and were correlated to sponge cover as a possible cause for habitat heterogeneity on a smaller scale. A total of 22 species was observed. Heterogeneity in species richness and abundance was apparent, and several sponge species were restricted in their depth of occurrence. Statistical data reduction suggests that sponge diversity may be partly explained by the distance towards adjacent reefs and to the degree of eutrophication, in which the latter is comprised of rate of planktonic respiration, total carbon and turbidity. Tannin concentrations did not determine within locality species heterogeneity as a priori postulated, but were positively related to sponge cover for reasons not yet elucidated.
    Type of Medium: Online Resource
    ISSN: 1383-4517 , 1875-9866
    URL: Article
    DOI: 10.1163/18759866-07704001
    Language: Unknown
    Publisher: Brill
    Publication Date: 2008
    detail.hit.zdb_id: 1484788-7
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  • 7
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    A checklist of marine sponges (Porifera) of peninsula India
    Magnolia Press ; 2020
    In:  Zootaxa Vol. 4885, No. 2 ( 2020-11-25)
    Details
    In: Zootaxa, Magnolia Press, Vol. 4885, No. 2 ( 2020-11-25)
    Abstract: An inventory of sponges from the shallow subtidal reefs of the west and east coasts of southern India is presented. The specimens offered in this paper were based on in-situ collections unlike the previous records of dry and net-entangled collections. A total of 101 species belonging to 12 orders, 22 families, 5 subfamilies and 44 genera from 4 subclasses of Class Demospongiae and one species from Class Calcarea are recorded. We recorded 18 new records to India, six new species combinations, 37 potential new records, and 40 species for the first time from the southwest coast. 
    Type of Medium: Online Resource
    ISSN: 1175-5334 , 1175-5326
    URL: Issue
    URL: Article
    DOI: 10.11646/zootaxa.4885.2
    DOI: 10.11646/zootaxa.4885.2.10
    Language: Unknown
    Publisher: Magnolia Press
    Publication Date: 2020
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  • 8
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    A new species of Biemna Gray, 1867 (Demospongiae,  Poecilosclerida) from the north coast of Brazil
    Magnolia Press ; 2005
    In:  Zootaxa Vol. 1087, No. 1 ( 2005-11-29), p. 39-
    Details
    In: Zootaxa, Magnolia Press, Vol. 1087, No. 1 ( 2005-11-29), p. 39-
    Abstract: Biemna spinomicroxea sp. nov. is described from the coast of Amapá State, Brazil. It differs from all other Biemna species in lacking smooth sigmas. The spiculation consist of oxea megascleres, spined small sigmas and microxeas. A key to the tropical West Atlantic species of Biemna is provided.
    Type of Medium: Online Resource
    ISSN: 1175-5334 , 1175-5326
    URL: Issue
    URL: Article
    DOI: 10.11646/zootaxa.1087.1
    DOI: 10.11646/zootaxa.1087.1.3
    Language: Unknown
    Publisher: Magnolia Press
    Publication Date: 2005
    SSG: 12
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  • 9
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    Flagellia, a new subgenus of Haliclona (Porifera, Haplosclerida)
    Museum National D'Histoire Naturelle ; 2017
    In:  European Journal of Taxonomy , No. 351 ( 2017-09-21)
    Details
    In: European Journal of Taxonomy, Museum National D'Histoire Naturelle, , No. 351 ( 2017-09-21)
    Abstract: Haplosclerid sponges possessing a unique asymmetric flagelliform type of sigmoid microsclere have been reported from all global oceans. This peculiar spicule, characterized by a circular or elliptical shape, with a longer and sharper curved ending at one side and a shorter and more gradually curved ending at the opposing side, is proposed to be termed ‘flagellosigma’. These sponges invariably also possess smaller normal sigmas while their skeletal structure of oxea megascleres is markedly confused. They are assigned to the large genus Haliclona Grant, 1841 (family Chalinidae) in a new subgenus, Haliclona (Flagellia) subgen. nov. The species belonging to the new subgenus are reviewed and four species new to science are described, Haliclona (Flagellia) indonesiae subgen. et sp. nov., H. (F.) amirantensis subgen. et sp. nov., H. (F.) hiberniae subgen. et sp. nov. and H. (F.) hajdui subgen. et sp. nov. One species, H. (F.) hentscheli nom. nov., is given a new name on account of secondary homonymy caused by its transfer to the genus Haliclona. One species remains unnamed because of paucity of material. Already known species, reassigned to the new subgenus are H. (F.) hamata subgen. et comb. nov., H. (F.) flagellifera subgen. et comb. nov., H. (F.) porosa subgen. et comb. nov., H. (F.) edaphus subgen. et comb. nov. and H. (F.) anataria subgen. et comb. nov. Additional species are likely hiding among many erroneous records of ‘Gellius flagellifer’ from wide ranging parts of the global oceans.
    Type of Medium: Online Resource
    ISSN: 2118-9773
    URL: Article
    DOI: 10.5852/ejt.2017.351
    Language: Unknown
    Publisher: Museum National D'Histoire Naturelle
    Publication Date: 2017
    detail.hit.zdb_id: 2633909-2
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  • 10
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    Phylogeography, genetic diversity and structure of the poecilosclerid sponge Phorbas fictitius at oceanic islands
    Brill ; 2010
    In:  Contributions to Zoology Vol. 79, No. 3 ( 2010-10-1), p. 119-129
    Details
    In: Contributions to Zoology, Brill, Vol. 79, No. 3 ( 2010-10-1), p. 119-129
    Abstract: In this study we assessed the sequence variation in the I3-M11 partition of the mtDNA cytochrome c oxidase subunit I gene (COI) in ten populations of the Atlanto-Mediterranean demosponge Phorbas fictitius (Porifera: Poecilosclerida) at two spatial scales: a regional scale comparing mainland (Iberian) and insular (Macaronesian) populations, and a local (Archipelagic) scale focusing on different island populations of the Azores archipelago. A multiple approach combining diversity measures, FST estimates, phylogenetic inference and nested clade phylogeographic analysis was used to assess the genetic structure and elucidate the evolutionary history of this species. Genetic differentiation, based of F ST estimates, was found among most populations at both scales revealing highly structured populations. This results of a presumably low dispersal potential and bathymetric range of the species, and the geographical isolation of the studied populations. However we found evidence of long distance dispersal events between some populations. Phylogenetic and network analyses indicate a separation of insular (Macaronesian) and mainland (Iberian) clades with only two haplotypes shared between these areas. The high genetic diversity and prevalence of ancestral haplotypes suggest the Macaronesian islands as the likely place of origin of this species with posterior expansion to mainland locations via current-mediated dispersal of larvae or sponge fragments. This study adds to the growing evidence of structured populations in the marine realm and highlights the importance of the Macaronesian islands on the evolutionary history of the Northeast Atlantic marine biota.
    Type of Medium: Online Resource
    ISSN: 1383-4517 , 1875-9866
    URL: Article
    DOI: 10.1163/18759866-07903004
    Language: Unknown
    Publisher: Brill
    Publication Date: 2010
    detail.hit.zdb_id: 1484788-7
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